Extending LVM space in Ubuntu https://ift.tt/N6hBAuD Did you ever install Ubuntu Linux with the default LVM (logical volume manager) partition layout and give it a really small disk size to begin with? This usually happens while setting up an EC2 instance in AWS, since the root volume gets 8 GB EBS storage by default. After […]
Using Wireshark to Analyze and Troubleshoot Hyper-V Networking https://ift.tt/boYTWzg Networking problems frequently challenge administrators. Introducing a virtualized switch to the mix adds another layer of complexity and multiple failure points. We can use the popular Wireshark tool to analyze traffic and uncover problems. Requirements for Success with Wireshark First, you need the software. You can […]
Protect Your Exchange Servers https://ift.tt/ZPkt5Gg We’ve said it before, we’re saying it now, and we’ll keeping saying it: it is critical to keep your Exchange servers updated. This means installing the latest available Cumulative Update (CU) and Security Update (SU) on all your Exchange servers (and in some cases, your Exchange Management Tools workstations), and […]
Improve identity strategy with Microsoft – Microsoft Security Blog https://ift.tt/tx7aONy Welcome to 2023! I wanted to kick this year off by having a quick look at the trends in identity security, what you can do about it, and what Microsoft is doing to help you. One of the things we talk about on the team […]
A Visual Guide to SSH Tunnels: Local and Remote Port Forwarding https://iximiuz.com/en/posts/ssh-tunnels/ Don’t miss new posts in the series! Subscribe to the blog updates and get deep technical write-ups on Cloud Native topics direct into your inbox. TL;DR SSH Port Forwarding as a printable cheat sheet. SSH is yet another example of an ancient technology […]
January 2023 Exchange Security Updates https://ift.tt/23JNQMv On January 10, 2023, Microsoft released new Security Updates for Exchange 2013 CU23, Exchange 2016 CU23 and Exchange 2019 CU11 and CU12. In this Security Update, the following CVEs with severity rating ‘Important’ are fixed: CVE-2023-21745 – Microsoft Exchange Server Spoofing Vulnerability (Spoofing) CVE-2023-21761 – Microsoft Exchange Server Information […]
How to Add Active Directory Logs to Microsoft Sentinel https://ift.tt/IDz2d8c When setting up your SIEM, ingesting logs from Active Directory is essential. This blog dives into the two options for ingesting AD logs and compare their strengths and weaknesses. The post How to Add Active Directory Logs to Microsoft Sentinel appeared first on Practical 365. […]
Why you should use Docker and containers https://ift.tt/nFfpQdy A book published in 1981, called Nailing Jelly to a Tree, describes software as “nebulous and difficult to get a firm grip on.” That was true in 1981, and it is no less true four decades since. Software, whether it is an application you bought or one that you […]
Security Update Guide Improvement – Representing Hotpatch Updates https://ift.tt/GVaFeZO Today we are updating the way Microsoft Security Update Guide (SUG) represents the Windows Hotpatch feature to make it easier for users to identify the hotpatch and security updates. Hotpatching was introduced a year ago as a new way to install updates on supported Windows Server […]
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